Rachel: The bottom line, Ross, is we cannot stay married.
Ross: I don't know if that's true.
Rachel: Oh, but it is.
Ross: Okay. You know what this is? This is a difference of opinion. And when that happens in a marriage-
Rachel: Oh, Ross, come on. This is not a marriage. This is the world's worst hangover!

Rachel: The nights are the hardest. But then the day comes and that's every bit as hard as the night. And then the night comes again...
Monica: The days and nights are hard, I get it. Look, Rachel, I'm sorry. I have to start getting ready. I'm getting married today.
Rachel: I know. At dusk. That's such a hard time for me.

Rachel: And hey, just so you know. It's not that common. It doesn't happen to every guy. And it is a big deal!
Chandler: I knew it!